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A low temperature process for the application of three‐layer polyethylene coatings

Shao Huai Qi (College of Material Science and Chemical Engineering, Tianjin University of Science and Technology, Tianjin, China)
Zhang Qi Bin (CNPC Research Institute of Engineering Technology, Tianjin, China)
Han Wen Li (CNPC Research Institute of Engineering Technology, Tianjin, China)
Xie Bei Bei (CNPC Research Institute of Engineering Technology, Tianjin, China)
Xu Zhong Ping (CNPC Research Institute of Engineering Technology, Tianjin, China)
Huang Gui Bai (CNPC Research Institute of Engineering Technology, Tianjin, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 8 November 2011

Abstract

Purpose

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The purpose of this paper is to report the investigation of a low temperature application process for three‐layer polyethylene coating (3LPE) at 185‐195°C to meet the requirement of the coating temperature for X80 longitudinally welded pipe.

Design/methodology/approach

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Plant coating and laboratory tests were performed to determine the properties of 3LPE coating coated at 185‐195°C.

Findings

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The properties of the 3LPE coating, which was applied by using a suitable low temperature cured epoxy powder at temperature of 185‐195°C, were nearly the same as those of a 3LPE coating that had been applied at the normal coating temperature (200‐230°C).

Originality/value

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Recommended acceptance criteria for 3LPE coatings applied at 185‐195°C are proposed. The research results met the requirements for external anti‐corrosion properties for X80 longitudinally welded pipe.

Keywords

Citation

Huai Qi, S., Qi Bin, Z., Wen Li, H., Bei Bei, X., Zhong Ping, X. and Gui Bai, H. (2011), "A low temperature process for the application of three‐layer polyethylene coatings", Anti-Corrosion Methods and Materials, Vol. 58 No. 6, pp. 312-314. https://doi.org/10.1108/00035591111178864

Publisher

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Emerald Group Publishing Limited

Copyright © 2011, Emerald Group Publishing Limited

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